Scaffold or mold for erecting concrete or cement walls for buildings.



(LE. WITTHOEFPI. SGAFEOLD 0R MOLD FOR EEEGTING GONGRETE 0R CEMENT WALLSFOR BUILDINGS.

APPLIOATXOH FILED AUG-.15, 1901. I

SHEETS-SHEET 1.

"i 3 Patented Mar. 23, 1909.

c. H. WIT THOEFFT. 'SCAFFOLD 0R MOLD FOR ERBG'I'ING CONCRETE 0R CEMENTWALLS FOR BUILDINGS.

APYLIOATION FILED AUG. 15

Patented M11123. 1909.

v 0. VII. WITTH EFPT. SCAFFOLD 0B. MOLD FOR EREGTING CONCRETE QR CEMENTWALLSTOB BUILDINGS.

A'PPLIOATION FILED AUG.15, 1907. Patented Mar. 23, 1909.

' 4 ansms-s v U. H. WITT HUEFFT. SGAFFOLD 0R MOLD FOB EBEUTING UONGRETEOB. CEMENT WALLS FOR BUILDINGS.

Hum

APPLIOATION FILED AUG. 16, 1907. $1,083., Patented Mar. 23,

UNITED sT-ATES PATENT chines.

To all whom it may concern:

CHARLES /n .,'wrr'rnoni rr, or sr. LOUIS, MISSOURI, ASSIGNOR TO 'rnnWEBER COMPANY,

OF CHICAGO, ILLINOIS, A CORPORATION.

' seimr'ohn on MoLDFon nnno'rmeconoen'r's on CEMENT WALLS FOR BUILDINGS.

Patented March 23, 190s.

Application filed August 15 1907. Serial No. 388,637.

Be it known thatI, CHA LES H. WrrT- HVOEFFVT, a citizen of the UnitedStates of America, residing in the city of St. Louis, in the State ofMissouri, have invented certain new and useful Improvements in scaffoldsand Molds for Erecting Concrete or Cement Walls for Buildings, of whichthe following is a full, clear, and exact description, referencebeinghad to the accompanying drawings, forming part of this specification.'

My invention relates to a new and'useful improvement in scaffolds andmolds for erecting concrete or cement walls for. buildings and the like,and has for its object to produce a device of that character which iscomparatively inexpensive to manufacture, strong and light inconstruction and which'can be placed in positionto perform its desiredfunctions without the aid of particularly skilled workmen.

Figure I is a top or lan view of a portion of my improved scafio d andmold. Fig. II

is an end elevationof the same. Fig. III is a side elevation of thesame. I F IV is an. enlarged detail top or )lan View of a portion of myimproved scaffold and mold, parts being broken away, and parts beingshown in section. Fig. V is an enlarged fragmentary sec .tion taken onhne VV, F1g.-II, F 1g. VI is an enlarged fragmentar side elevation of myim roved scaffold an mold. Figs. VII, .VI I and IX are views similar toFigs. IV, V and VI respectively, illustrating a slightly modified.construction of my structure. Fig. X is an enlarged detail top or planview of one of thestanchions, together with one of the splice pocketsthereon.

A represents aground level, and B a foundation of concrete, cement ormasonry, which is constructed preparatory to setting in place my imroved scaffold and mold to build up the wa l to be erected on thisfoundation.

From an inspection of the first three fig,

'ures of the drawing it will be observed that I I arrange a scaffold andone section of the mold on each side of the foundation B and betweenwhich scaffolds and molds the wall proper is formed. i

l designates a main sill of my scall'old which is preferably of angleshape.

c-hion sections 3 and 5 are united by diago nally disposed tie-bars 6shape and horizontally preferably of T-sha e.

8 designates leveling plates secured to the lower ends of the lower staystanchion sections 5 and 9 are feet adjustably secured to said levelingplates by means of bolts 11? and nuts 10, the former of which passthrough suitable perforations in the leveling plates preferably of angle(isposed tie-bars 7 S andfeet 9 respectively. Each of the lowerstanchion sections Sand 5 has secured to it at its upper end a splicepocket 12.

14 designates extension stanchion sections preferably of T-shape andwhich surmount the lower stanchion scctions3 and 5 to which they areconnected by introducing them into the s lice pockets 12 and by .theemployment of oltsor other suitable means of fastening inserted throughthe splice pockets and sections. The extension stanchion sectionssurmounting the lower stanchion'scctions 3 and 5 of each scaffold areunited by tic-bars 14*. The extension stanchion sections 14 surmountingthe lower stay stanchion sections 5 are united by tierods 15. It Will beseen, by reference to the d rawings,'.that these tie-rods are arrangedout ofhoiizontal alinement with each other, they being so arranged inorder that they may be properly mounted. in the stanchion ,soctionswithoutconflict with each other.

The extension stanchion sectionsl i serve to complete the main and staystanchions to the desired height for the construction of a wall and inthe following description they may be in general referred. to asconstituting parts of the main and stay stanchions where their use isnecessary to acquire a desired height in the scaffold.

16 designates a running board or platform arranged between the mainstanchions and stay stanchions and supported by the tie-bars 7 andintended to be used by the workmen employed 111 constructing a wall inthe use of my scaffold.

its length directly in the center of the space between two scaffolds inwhich a wall 1s to be constructed. 19 is a second traveler railsupported by brackets '20 attached to the stay stanchions. The travelerrails 17 and 19 are designed to be traversed by travelers 21 thatsupport buckets 22 having drop bottoms and m. which concrete may beconveyed to' be deposited in the space between the scafiolds for theconstruction of a wall. lhe two traveler rails are utilized in orderthat the travelers may be conducted through one course in conveying thebuckets to the wall space and then switched into another course inreturning the buckets to be refilled.

The mold for'the wall 3 made up of a plurality of mold boards 23arranged against the main stanchions of two companion scaffolds which,as before stated, are located in juxtaposition to the foundation B andthe mold walls are built up by having their lowermost boards-rest uponthe main sill 1 and then su )erim osin the other mold boards on thelower oards to the required height. After'arranging the mold boardsagainst the scaffolds I lace between the two sets of boards and in thewall space distance pieces 24 located at suitable intervals.

25 are cam levers pivoted to the main stanchions and by which the moldboards may be adjusted to carry them to the distance pieces 24. The camlevers 25, when operated, act to carry the mold boards inwardly relativeto the wall space. and awayfrom the main stan chions, as seen in Fig. VIfor a purpose that will be hereinafter explained. Each mold board 23 hassecured to it at its outer face stiffener bars 26 preferably of T-sha cand refcrably extending diagonally of tie board The ends of thestiffener-bars upon each board with the exce tion of the board at thebottom of each mo d wall extend beyond the edges of the board so thatthey will overlap the adjacent boards to rovidc for alinement of theentire series of oards and afford a smooth lining mold face which is areprovided with slots 29. The object in providing these slots is to permitof the altachment to the main sill of an additional main stanchion whichmay be adjnstably bolted to said plates and connected to other parts ofthe scaffold whcn occasion demands, as in extending the scaffold infilling out cornets of walls V In the practical use of my scaffold andmold the herein described structure is employed as follows: After thefoundation B is produced I arrange at each side of said foundation oneof the scaffolds cmislructed as set forth so that the main sill of eachscaffold will rest upon the foundation. The scaffolds are then trued orleveled by adjusting the leveling plates 8 relative to the feet 9 towhich they are attached. The mold boards 23 are then placed against mainstanchions of the scaffolds to form the sides of the mold by which thewall is to be produced. The distance pieces 24 are at this timeinterposed between the mold boards and the cam levers 25 are operated tomove the mold walls consisting of the mold boards inwardly so that theywill be closely fitted to the distance pieces. The truss rods 27 arenext put in lace and the nntsthercon are tightened to )ring the trussrods into close impingement against the stiffener bars 26 of the moldboards. 'lie-rods30 are then mounted in the main stanchions of the twoscaffolds to connect said scaffolds and )revent outward movement ofeither scaffold relative to the wall. The platform or running boards andthe traveler rails are next put in place upon one or both of thescaffolds and the mold is in readiness for use. As the concrete wall isbuilt up I mount upon the lower stanchion sections the extensionstanchion sections 14 to the desired height according to requirement andelevate the platform or running boards and the traveler rails, asoccasion demands during the construction of a wall and after-tying theextension sections together continue to arrange and operate the parts ofthe scaffoldand mold in the same manner as that initially carried out.

In Figs. VII to .lX inclusive I have shown a modification wherein itwill be observed that the stilfcncrs 26" are vertical disposed and theirends do not overlap the adiaccnt boards, and that both theirlongitudinaland transverse edges are tongucd and grooved. Also that thetruss rod :37" is formed with bifurcated ends which pass throughperforations formed to receive them in the main stanchions 3. It willfurther be observed that one arnrof the -bifurcated end of the truss rodis of a greater distance from the axis of the trussrod than is the otherarm of said bifurcated end. Also that in each stanchion 3 there are fourperforations, and by which construction the bifurcated ends of iii 1. Ascaffold and mold consisting of frame-' work composed of posts, andmeansfor supporting and tying said elements together, a mold facing board,aplurality of cams pivotally supported on said posts for-causing saidmold facing board to stand away from said posts, and a truss rodsupported posts which cooperates with said mold facing oard forpreventin the same from bulging,

, substantially as set orth.

p 2. In a structure of the character described, the combination with aframework composed of a base rail, upright Hosts, and means forsupporting and tying sai elements together; of'a-mold facingboardsuppiorted by said base rail, a pl'urallty of cams pivotallysupported on said upright posts for causing said mold facing board tostand away rom said upright. posts, and a truss rod supported by said-uright posts which cooperates with said m0 (1 tacingboard for bpreventing the same from bulging, substantially as set forth.

3. In a structure of the character described, the combination with aframework composed of a base rail, upright posts, and means forsupporting an( tying said elements together, of mold facing boards supping stiffenoards, truss ported by said base rail, overla ers carried bysaid mold facing saic and neither'truss rod will i scribed, thecombination rodssupported by said upright posts which cooperate withsaid stiffeners for preventing mold facing boards from bulgmg, and a)lurality of cams for causing said mold facing oards to stand away fromsaid upright posts, I

substantially as set forth. 4. In a structure of the characterdescribed, the combination with a framework composed of 'a base rail,upright posts, and

means for supporting and t ving sai elements together, of mold facingoards supported by said base rail, overlapping diagona ly arrangedstiifeners carried by said mold facing boards, truss rods supported bysaid upright posts which 006 crate with said'stiffeners for reventingsai mold facing boards from ul ing, and a plurality-of cams for causingsaid mold facing boards 5.- n .a structure of the character de- With aframework composed of a base rail, upright osts, and means forsupporting and tying said elements together; of a plurality ofvertically and horizontally disposed mold facing boards supported bysaid base/rail, over appin diagonally arranged stiffeners earned moldfacing boards, and truss rods s'u y said upright-posts; said trussro Bbeing so constructed and arranged that one red will not interfere withthe trussrod for the next horizontally alining mold facing board,substantially asset forth.

CHARLES H. WITTHOEFFT.

"In presence of- BLANOHE HOGAN, H. G. 000K. I

y said to stand away from said u right posts, substantially as setforth.

ported

